Mixed 76 g of a 15% salt solution and 24 g of a 25% solution. What percentage of salt is in the resulting mixture?

Let’s find the mass of salt in each of the solutions.

This requires multiplying the weight of the solutions by the salt content in them.

Will be:

76 * 15% = 76 * 0.15 = 11.4 g (in the first solution).

24 * 25% = 24 * 0.25 = 6 g (in the second solution).

In just two solutions:

11.4 + 6 = 17.4 grams.

The total mass of the mixture of solutions:

76 + 24 = 100 grams.

Thus, the salt content in the resulting solution will be equal to:

17.4 / 100 * 100% = 17.4%.

Answer:

The resulting mixture contains 17.4% salt.